1973 was a very short year for camaro production. the production line sat dormant for months due to a union strike ( unions suck ), many half built camaros sat half built due to the strike.

if anyone could find an original 6 cyl 73 camaro with the numbers matching six, it would be one of 3000.

given the fact that a large majority of owners in the intervening years would have swapped in a V8 ( people searched for 6 cyl donor cars through he 70s, 80s and 90s), i would be willing to bet that there are less than two dozen original, unaltered 1973 straightsix factory cars still exist in original condition.